Midbrian

Question 1

POSTERIOR SURFACE of Midbrain?

Answer 1

4 colliculi
2 superior 2 inferior

Question 2

-In the midline below the inferior colliculi nerves emerge?

Answer 2

the trochlear

Question 3

Lateral surface :

Answer 3

The superior brachium passes from?
the superior colliculus to the lateral geniculate body and the optic tract.

The inferior brachium connects ?
-the inferior colliculus to the medial geniculate body

Question 4

ANTERIOR ASPECT MIDBRAIN ?

Answer 4

-interpeduncular fossa which is bounded on either side by the
crus cerebri

-posterior perforated substance

oculomotor nerve emerges from a groove on ?
the medial side of the crus cerebri

Question 5

oculomotor nerve emerges from a groove on ?

Answer 5

the medial side of the crus cerebri

Question 6

Cerebral peduncle?

Answer 6

Substantia nigra
Tegmentum
Crus cerebrii

Question 7

-Transverse Section of the Midbrain at the Level of the Inferior Colliculi?

Answer 7

-inferior colliculus
-large nucleus
-auditory pathway
-lateral lemniscus
-Inferior brachium to the medial geniculate body ( course of the pathway )
-trochlear nucleus (posterior to the medial longitudinal fasciculus)
-trochlear nerve decussate completely in the superior medullary velum

-mesencephalic nuclei of the trigeminal nerve are —lateral— to the cerebral aqueduct.
-decussation of the superior cerebellar peduncle
-reticular formation
-medial lemniscus
-substantia nigra

Question 8

Transverse Section of the Midbrain at the Level of the Superior Colliculi?

Answer 8

-superior colliculus
-visual reflexe
-oculomotor nucleus (posterior to the medial longitudinal fasciculus.)
-Red nucleus ( B/w cerebral aqueduct and the substantia nigra)
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